Neighbours, not enemies
The misgivings and opposing fronts between neighbors in the communities of owners are not uncommon. Different personalities, habits, values, life experiences, families, geographical, personal projects, economic interests, have children or not at certain ages, etc.. sometimes generate antipathies in the neighborhood.
Would not matter if it were limited only to the protagonists and does not affect to the relationships with other residents, which sometimes, unfortunately, happens.
In any case, a community is the act of sharing things together, and everyone's interest is to preserve as much as possible the cordiality in the relationship, if only for strategy: what happens to you today, tomorrow it could happen to another or other, and therefore require the cooperation of others.
The nature of human society requires order and cooperation for successful coexistence and benefit, and therefore the game is based on mutual concessions.
The Administrator, as an independent professional, can help "to smooth over" or prevent certain situations that actually are waiting just that.